From e46867b1348cd22659315da34fd1405c0b89e75b Mon Sep 17 00:00:00 2001
From: origami11 <origami11@yandex.ru>
Date: Mon, 2 Oct 2017 14:16:49 +0300
Subject: [PATCH] =?UTF-8?q?=D0=92=D1=8B=D0=B2=D0=BE=D0=B4=20=D0=BE=D1=88?=
 =?UTF-8?q?=D0=B8=D0=B1=D0=BA=D0=B8=20=D0=B5=D1=81=D0=BB=D0=B8=20=D0=BD?=
 =?UTF-8?q?=D0=B5=20=D0=BE=D1=82=D0=BA=D1=80=D1=8B=D0=B2=D0=B0=D0=B5=D1=82?=
 =?UTF-8?q?=D1=81=D1=8F=20=D1=84=D0=B0=D0=B9=D0=BB?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/Excel/Document.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Excel/Document.php b/src/Excel/Document.php
index e46ff31..365dba3 100644
--- a/src/Excel/Document.php
+++ b/src/Excel/Document.php
@@ -76,7 +76,9 @@ class Excel_Document {
     function save($filename)
     {
         $doc = new XMLWriter();
-        $doc->openURI($filename);
+        if (!$doc->openURI($filename)) {
+            throw new Exception("unknown file " .  $filename);
+        }
         $doc->setIndent(false);
         $doc->startDocument('1.0','utf-8');
         $doc->startElement('Workbook');